Check-In – Day 24

[samuraiter]

What have you been doing? ... I usually lead into that question, but I couldn't think of anything witty today.

— Thinking. Maybe a little, maybe a lot.
— Writing.
— Planning and / or researching.
— Editing.
— Sending things to the beta.
— Posting!
— Relaxing, taking a break, etc.
— Other stuff-ing. Look at the comment.

Question: How do you know for sure if it's writer's block and not just a momentary stop?